TI DS110DF410

January 20, 2012
Low Power Multi-Rate Quad Channel Retimer
General Description
The DS110RT410/DS110DF410 is a four-channel multi-rate
retimer with integrated signal conditioning. Both the
DS110RT410 and the DS110DF410 include an input Continuous-Time Linear Equalizer (CTLE) on each channel. The
DS110DF410 also includes a five-tap Decision Feedback
Equalizer (DFE) on each channel.
The DS110DF410 can enhance the reach and robustness of
long, lossy, crosstalk-impaired high speed serial links to
achieve BER < 1×10-15. For less demanding applications/interconnects, the non-DFE variant DS110RT410 can be used
to achieve the same BER performance. The two devices are
Each channel of the DS110RT410/DS110DF410 independently locks to serial data at data rates from 8.5 to 11.3 Gbps
or to any supported submultiple of these data rates. A reference clock is not required, which simplifies system design and
lowers overall cost. Both the DS110RT410/DS110DF410
support half-rate, quarter-rate and one-eighth-rate for backward compatibility. A protocol select mode is available to
speed up lock time.
Programmable transmit de-emphasis (up to -12 dB), transmit
VOD (up to 1300 mVp-p) and adaptive receive equalization (up
to 34 dB boost at 5 GHz) enable data transmission over lossy
copper cables of typical lengths greater than 10 m or backplanes with multiple connectors and typical trace lengths
greater than 40 inches. The CDR function is ideal for use in
parallel optical modules to reset the jitter budget and retime
high speed serial data.
The programmable settings can be applied easily using the
SMBus interface or they can be loaded via an external EEPROM. An on-chip eye monitor and a PRBS generator allow
real-time measurement of high speed serial data for system
bring-up or field tuning.
The device is offered in a 48-pin LLP, 7 mm x 7 mm flowthrough package.
Notice: This document is not a full datasheet. For more
information regarding this product or to order samples
please contact your local Texas Instruments sales office
or visit http://www.ti.com.
■ All devices in the retimer family are pin compatible with
© 2012 Texas Instruments Incorporated
301770 SNLS397
each other and with the quad buffer-repeater. The pincompatible device family includes the following:
— DS100RT410 (EQ+CDR+DE): 10.3125 Gbps
— DS100DF410 (EQ+DFE+CDR+DE): 10.3125 Gbps
— DS110RT410 (EQ+CDR+DE): 8.5 - 11.3 Gbps
— DS110DF410 (EQ+DFE+CDR+DE): 8.5 - 11.3 Gbps
— DS125RT410 (EQ+CDR+DE): 9.8 - 12.5 Gbps
— DS125DF410 (EQ+DFE+CDR+DE): 9.8 - 12.5 Gbps
— DS100BR410 (EQ+DE): Up to 10.3125 Gbps
Typical Power Dissipation (EQ+CDR+DE): 150 mW / chn
Typical Power Dissipation (EQ+DFE+CDR+DE): 180
mW / chn
Locks to 1/2, 1/4, 1/8 legacy data rates
Fast lock operation based on protocol select mode
Adaptive equalization up to 34 dB boost at 5 GHz
Adjustable transmit VOD : 600 to 1300 mVp-p
Adjustable transmit de-emphasis to -12 dB
Programmable output polarity inversion
Input signal detection, CDR lock detection/indicator
On-chip Eye Monitor (EOM), PRBS generator
Single 2.5 V ±5% power supply
SMBus/EEPROM configuration modes
■ Host-side front-port and backplane interface, SFF-8431,
■ Ethernet: 10GbE, 1GbE
■ Infiniband: SDR, DDR, QDR
■ Fibre-Channel: 2GFC, 4GFC, 8GFC, 10GFC
■ SDH/SONET : OC-48 (2.488 Gbps), OC-192 (9.952 Gbps)
DS110RT410, DS110DF410
DS110RT410, DS110DF410
Typical Application Diagram
DS110RT410, DS110DF410
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